[OSM-talk] Parcel data

[Anthony]

I've got parcel data for my county from the property appraiser's office.
It's in shp format, which I have converted to osm format.  The data lines up
with what's already there nicely - there don't seem to be any projection
issues and the accuracy appears to be excellent.  It is public domain with
no use restrictions: "There are no use restrictions, other than removing all
references to the Property Appraisers Office from any redistributed data."

For starters, I want to add the parcels which represent residential parcels
(this info is available: I'll include "vacant residential", "vacant
townhome", "vacant condo", "single family r", "townhouse/villa", "new res
permit", "mobile home", mobile family units, retirement communities,
"miscellaneous residential", and perhaps some others after looking at the
code manual) as landuse=residential.  I have all the addresses for all of
these parcels, so I will also tag the polygons with addr:housenumber and
addr:street.  I know this isn't strictly the way addr is supposed to work -
you're supposed to tag buildings rather than parcels, but I don't have the
polygons for the buildings and this is just too good of information to not
add at all.  I will match up the street names in this shapefile with the
street names in the OSM db to make sure there is already a street with the
same name somewhere nearby (maybe I'll even ensure the parcel is lined up
with the street and there are no streets in between, but I'm not sure how
difficult that's going to be).  If there are any discrepancies I'll fix them
manually or leave those parcels out.  I'll identify locations where
highway=*s overlap with parcels and verify/fix them manually or leave those
parcels out.  I'll identify locations where other landuse polygons overlap
with parcels and verify/fix them manually or leave those parcels out.

I'd also like to include the folio numbers as a unique key so that I can tie
this up with the rest of the database (it includes property tax values,
heated square footage, owner name, and lots of other goodies which I assume
aren't wanted in OSM).  I guess I'll use proptax_folio_numb=* for this.

Any other suggestions?  Objections?  The data is at ftp://209.26.172.71/.
The documentation is called !Documentation.doc, and the DOR Code Manual.pdf
describes all the different land use codes and gives pretty pictures as
examples (eventually I'd like to import more than just residential; there
are all kinds of goodies in here, but I'm worried about overlap when it
comes to the non-residential parcels).  There are also polygons for bodies
of water which is very detailed down to the pond level and is up to date as
of 2008.  I can probably add this relatively easily as well - there will be
some overlap issues but I think it'll be doable.

There are other files there which seem too complicated to bother with.  And
I believe this information is available for most or all counties in
Florida.  So if anyone is interested in sharing expertise on this regarding
other counties, please let me know.  I'm focusing solely on my county, at
least for the foreseeable future (I assume no one wants to pay me to do this
work, so I'm going to be selfish and stick to my county:).
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